filter datatable or other components

hi, I have created a login page after which the user has its own identifier should I use in the following pages to filter datatable , list , combo etc . etc…
The only way is to pass the parameter to the url of the components or is there some other method ?
userid I saved in cookie storage .
Thank you

userid I saved in cookie storage

Server side will receive all cookies from the page, its default browser behavior. So userId must be already accessible on a server-side

In common case you can use onBeforeAJax handler to mix some extra data or extra header in all ajax requests.

http://docs.webix.com/desktop__server_customload.html#modifyingbackgroundajaxrequests